Applications of industrial ecology : manufacturing, recycling, and efficiency
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2007.
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| Format: | Thesis |
| Language: | eng |
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Massachusetts Institute of Technology
2008
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| Online Access: | http://hdl.handle.net/1721.1/39901 |
| _version_ | 1826188523963678720 |
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| author | Dahmus, Jeffrey B. (Jeffrey Brian), 1974- |
| author2 | Timothy G. Gutowski. |
| author_facet | Timothy G. Gutowski. Dahmus, Jeffrey B. (Jeffrey Brian), 1974- |
| author_sort | Dahmus, Jeffrey B. (Jeffrey Brian), 1974- |
| collection | MIT |
| description | Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2007. |
| first_indexed | 2024-09-23T08:00:58Z |
| format | Thesis |
| id | mit-1721.1/39901 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T08:00:58Z |
| publishDate | 2008 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/399012019-04-09T16:06:59Z Applications of industrial ecology : manufacturing, recycling, and efficiency Dahmus, Jeffrey B. (Jeffrey Brian), 1974- Timothy G. Gutowski. Massachusetts Institute of Technology. Dept. of Mechanical Engineering. Massachusetts Institute of Technology. Dept. of Mechanical Engineering. Mechanical Engineering. Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2007. Includes bibliographical references. This work applies concepts from industrial ecology to analyses of manufacturing, recycling, and efficiency. The first part focuses on an environmental analysis of machining, with a specific emphasis on energy consumption. Energy analyses of machining show that in many cases, the energy of actual material removal represents only a small amount of the total energy used in machining, as auxiliary processes can have significant energy requirements. These analyses also show that the embodied energy of the materials that are machined can far exceed the energy of machining. Such energy consumption data, along with material flow data, provide much of the information necessary to evaluate machining on the basis of environmental performance. The second part of this work focuses on material recycling at product end-of-life. In this section, a means of evaluating the material recycling potential for products is presented. This method is based on two measures: the value of the materials used in a product and the mixture of materials used in a product. This simple representation is capable of differentiating between products that are economically worthwhile to recycle and those that are not. (cont.) Such information can in turn be used to help guide product design and recycling policy. The third part of this work focuses on the effectiveness of efficiency improvements in reducing environmental impact. Historical data from ten activities show that improvements in efficiency are rarely able to outpace increases in production. Thus, the overall impact of each of these activities has increased over time. Specific conditions and policies that do allow for efficiency improvements to reduce impact are identified and explored. Together, the three topics presented here provide information, analyses, and recommendations to help move industrial systems towards sustainability. by Jeffrey B. Dahmus. Ph.D. 2008-01-10T15:55:50Z 2008-01-10T15:55:50Z 2007 2007 Thesis http://hdl.handle.net/1721.1/39901 182546884 eng M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 162 p. application/pdf Massachusetts Institute of Technology |
| spellingShingle | Mechanical Engineering. Dahmus, Jeffrey B. (Jeffrey Brian), 1974- Applications of industrial ecology : manufacturing, recycling, and efficiency |
| title | Applications of industrial ecology : manufacturing, recycling, and efficiency |
| title_full | Applications of industrial ecology : manufacturing, recycling, and efficiency |
| title_fullStr | Applications of industrial ecology : manufacturing, recycling, and efficiency |
| title_full_unstemmed | Applications of industrial ecology : manufacturing, recycling, and efficiency |
| title_short | Applications of industrial ecology : manufacturing, recycling, and efficiency |
| title_sort | applications of industrial ecology manufacturing recycling and efficiency |
| topic | Mechanical Engineering. |
| url | http://hdl.handle.net/1721.1/39901 |
| work_keys_str_mv | AT dahmusjeffreybjeffreybrian1974 applicationsofindustrialecologymanufacturingrecyclingandefficiency |